<?xml version="1.0"?>
<!DOCTYPE article
PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.4 20190208//EN"
       "JATS-journalpublishing1.dtd">
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" article-type="research-article" dtd-version="1.4" xml:lang="en">
 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Solar-Terrestrial Physics</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Solar-Terrestrial Physics</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Solar-Terrestrial Physics</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="online">2500-0535</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">39467</article-id>
   <article-id pub-id-type="doi">10.12737/stp-63202008</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Results of current research</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Results of current research</subject>
    </subj-group>
    <subj-group>
     <subject>Results of current research</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Analyzing existing applied models of the ionosphere to calculate radio wave propagation and a possibility of their use for radar-tracking systems. II. Domestic models</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Analyzing existing applied models of the ionosphere to calculate radio wave propagation and a possibility of their use for radar-tracking systems. II. Domestic models</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Алпатов</surname>
       <given-names>Виктор Владимирович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Alpatov</surname>
       <given-names>Viktor Vladimirovich</given-names>
      </name>
     </name-alternatives>
     <email>v_alpatov@mail.ru</email>
     <bio xml:lang="ru">
      <p>кандидат физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Беккер</surname>
       <given-names>Сусанна Зейтуллаевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Bekker</surname>
       <given-names>Susanna Zeytullaevna</given-names>
      </name>
     </name-alternatives>
     <email>susanna.bekker@gmail.com</email>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Козлов</surname>
       <given-names>Станислав Иванович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kozlov</surname>
       <given-names>Stanislav Ivanovich</given-names>
      </name>
     </name-alternatives>
     <email>s_kozlov@inbox.ru</email>
     <bio xml:lang="ru">
      <p>доктор физико-математических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of physical and mathematical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ляхов</surname>
       <given-names>Андрей Николаевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Lyakhov</surname>
       <given-names>Andrey Nikolaevich</given-names>
      </name>
     </name-alternatives>
     <email>alyakhov@idg.chph.ras.ru</email>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Яким</surname>
       <given-names>Валентин Васильевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Yakim</surname>
       <given-names>Valentin Vasilyevich</given-names>
      </name>
     </name-alternatives>
     <email>12-220@list.ru</email>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Якубовский</surname>
       <given-names>Сергей Владимирович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Yakubovsky</surname>
       <given-names>Sergey Vladimirovich</given-names>
      </name>
     </name-alternatives>
     <email>syakubovskiy@mail.ru</email>
     <bio xml:lang="ru">
      <p>доктор технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Институт прикладной геофизики им. академика Е.К. Федорова Росгидромета</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Fedorov Institute of Applied Geophysics</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Институт динамики геосфер им. академика М.А. Садовского РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Sadovsky Institute of Geospheres Dynamics of RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Научно-исследовательский испытательный центр ЦНИИ ВКС МО РФ</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Central Research Institute of Aerospace Forces, Ministry of Defense of the Russian Federation</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Институт динамики геосфер имени академика М.А. Садовского РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Sadovsky Institute of Geosphere Dynamics RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Институт динамики геосфер имени академика М.А. Садовского РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Sadovsky Institute of Geosphere Dynamics RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Институт динамики геосфер имени академика М.А. Садовского РАН</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Sadovsky Institute of Geosphere Dynamics RAS</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">Научно-исследовательский испытательный центр ЦНИИ войск ВКО</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Scientific Research Center Kosmos, Ministry of Defence</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <volume>6</volume>
   <issue>3</issue>
   <fpage>60</fpage>
   <lpage>66</lpage>
   <self-uri xlink:href="https://zh-szf.ru/en/nauka/article/39467/view">https://zh-szf.ru/en/nauka/article/39467/view</self-uri>
   <abstract xml:lang="ru">
    <p>We consider the ionospheric models that are suitable for over-the-horizon HF and UHF band radars. Namely, there are three such models: the numerical model developed by IZMIRAN and Fedorov Institute of Applied Geophysics, the numerical model designed by ISTP SB RAS and IDG RAS, and the probabilistic model worked out by IDG RAS. We briefly describe these models and report the results of the analysis of their compliance with radar requirements. Probabilistic models are shown to be most promising; hence, they must be placed at the frontier of ionosphere simulation.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>We consider the ionospheric models that are suitable for over-the-horizon HF and UHF band radars. Namely, there are three such models: the numerical model developed by IZMIRAN and Fedorov Institute of Applied Geophysics, the numerical model designed by ISTP SB RAS and IDG RAS, and the probabilistic model worked out by IDG RAS. We briefly describe these models and report the results of the analysis of their compliance with radar requirements. Probabilistic models are shown to be most promising; hence, they must be placed at the frontier of ionosphere simulation.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>radar means</kwd>
    <kwd>ionospheric models</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>radar means</kwd>
    <kwd>ionospheric models</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
  <p></p>
 </body>
 <back>
  <ref-list>
   <ref id="B1">
    <label>1.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Aksenov O.Yu., Kozlov S.I., Lyakhov A.N., Trekin V.V., Perunov Yu.M., Yakubovsky S.V. Analyzing existing applied models of the ionosphere for calculating radio wave propagation and possibility of their use for radar systems. I. Classification of applied models and the main requirements imposed on them for radar aids. Solar-Terrestrial Physics. 2019, vol. 6, iss. 1, pp. 34-45. DOI: 10.12737/stp-61202008.</mixed-citation>
     <mixed-citation xml:lang="en">Aksenov O.Yu., Kozlov S.I., Lyakhov A.N., Trekin V.V., Perunov Yu.M., Yakubovsky S.V. Analyzing existing applied models of the ionosphere for calculating radio wave propagation and possibility of their use for radar systems. I. Classification of applied models and the main requirements imposed on them for radar aids. Solar-Terrestrial Physics. 2019, vol. 6, iss. 1, pp. 34-45. DOI: 10.12737/stp-61202008.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B2">
    <label>2.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Andriyako V.A., Burlak L.F., Kozlov S.I. Integrated empirical models of height distribution of electron density in the quiet ionosphere at mid-latitudes. Kosmicheskie issledovaniya [Cosmic Res.]. 1978, vol. 16, no. 5, pp. 705-714. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Andriyako V.A., Burlak L.F., Kozlov S.I. Integrated empirical models of height distribution of electron density in the quiet ionosphere at mid-latitudes. Kosmicheskie issledovaniya [Cosmic Res.]. 1978, vol. 16, no. 5, pp. 705-714. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B3">
    <label>3.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bekker S.Z. Analysis of electron density calculations using deterministic-probabilistic model of the ionospheric D-region. Solar-Terrestrial Physics. 2018, vol. 4, no. 3, pp. 67-75. DOI: 10.12737/stp-43201809.</mixed-citation>
     <mixed-citation xml:lang="en">Bekker S.Z. Analysis of electron density calculations using deterministic-probabilistic model of the ionospheric D-region. Solar-Terrestrial Physics. 2018, vol. 4, no. 3, pp. 67-75. DOI: 10.12737/stp-43201809.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B4">
    <label>4.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bekker S.Z., Kozlov S.I., Lyahov A.N. Ionosphere models  for calculation of radio wave propagation when solving applied problems. Voprosy oboronnoi tekhniki [Military Enginery]. Ser. 16: Counter-Terrorism Technical Devices. 2013, iss. 3-4, pp. 85-88. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Bekker S.Z., Kozlov S.I., Lyahov A.N. Ionosphere models  for calculation of radio wave propagation when solving applied problems. Voprosy oboronnoi tekhniki [Military Enginery]. Ser. 16: Counter-Terrorism Technical Devices. 2013, iss. 3-4, pp. 85-88. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B5">
    <label>5.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bekker S.Z., Kozlov S.I., Lisova S.S., Lyahov A.N. Statistic model of ionospheric Es region for calculation of radio wave propagation. XX Vserossiiskaya nauchno-prakticheskaya konferentsiya “Aktual'nye problemy zashchity i bezopasnosti”: Trudy. [Proc. XX Russian National Theoretical and Practical Conference “Actual Problems of Protection and Safety”.]. S.-Petersburg, 3-6 April 2017. pp. 119-123. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Bekker S.Z., Kozlov S.I., Lisova S.S., Lyahov A.N. Statistic model of ionospheric Es region for calculation of radio wave propagation. XX Vserossiiskaya nauchno-prakticheskaya konferentsiya “Aktual'nye problemy zashchity i bezopasnosti”: Trudy. [Proc. XX Russian National Theoretical and Practical Conference “Actual Problems of Protection and Safety”.]. S.-Petersburg, 3-6 April 2017. pp. 119-123. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B6">
    <label>6.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bilitza D. Electron density in the D region as given by the IRI. IRI-79. WDC-A-STP Report UAG-82. Boulder Colorado, 1981, pp. 7-10.</mixed-citation>
     <mixed-citation xml:lang="en">Bilitza D. Electron density in the D region as given by the IRI. IRI-79. WDC-A-STP Report UAG-82. Boulder Colorado, 1981, pp. 7-10.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B7">
    <label>7.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bilitza D. International Reference Ionosphere 2000. Radio Sci. 2001, vol. 36, iss. 2, pp. 261-275. DOI: 10.1029/ 2000RS002432.</mixed-citation>
     <mixed-citation xml:lang="en">Bilitza D. International Reference Ionosphere 2000. Radio Sci. 2001, vol. 36, iss. 2, pp. 261-275. DOI: 10.1029/ 2000RS002432.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B8">
    <label>8.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Bryunelli B.E., Namgaladze A.A. Fizika ionosfery [Physics of the Ionosphere]. Moscow, Nauka Publ., 1988, 528 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Bryunelli B.E., Namgaladze A.A. Fizika ionosfery [Physics of the Ionosphere]. Moscow, Nauka Publ., 1988, 528 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B9">
    <label>9.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Chasovitin Yu.K., Avdyushin S.I., Armenskaya O.A. Model' global'nogo raspredeleniya kontsentratsii, temperatury i effektivnoi chastoty soudarenii elektronov. GOST 25645.146-89 [The Model of Global Distribution of Electron density, Temperature, and Effective Collision Frequency. State Standard 25645.146-89]. Moscow, Gos. standart SSSR Publ., 1990, 825 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Chasovitin Yu.K., Avdyushin S.I., Armenskaya O.A. Model' global'nogo raspredeleniya kontsentratsii, temperatury i effektivnoi chastoty soudarenii elektronov. GOST 25645.146-89 [The Model of Global Distribution of Electron density, Temperature, and Effective Collision Frequency. State Standard 25645.146-89]. Moscow, Gos. standart SSSR Publ., 1990, 825 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B10">
    <label>10.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Chavdarov S.S., Chasovitin Yu.K., Chernysheva S.P., Sheftel V.M. Sredneshirotnyi sporadicheskii sloi E ionosfery [Mid-latitude Sporadic E Layer of the Ionosphere]. Moscow, Nauka Publ., 1975, 148 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Chavdarov S.S., Chasovitin Yu.K., Chernysheva S.P., Sheftel V.M. Sredneshirotnyi sporadicheskii sloi E ionosfery [Mid-latitude Sporadic E Layer of the Ionosphere]. Moscow, Nauka Publ., 1975, 148 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B11">
    <label>11.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Danilov A.D. Khimiya ionosfery [Chemistry of the Ionosphere]. Leningrad, Gidrometeoizdat Publ., 1967, 295 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Danilov A.D. Khimiya ionosfery [Chemistry of the Ionosphere]. Leningrad, Gidrometeoizdat Publ., 1967, 295 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B12">
    <label>12.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Danilov A.D. D region photochemistry. Ionosfernye issledovaniya [Ionospheric Research]. Moscow, Nauka Publ., 1981, no. 34. pp. 6-33. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Danilov A.D. D region photochemistry. Ionosfernye issledovaniya [Ionospheric Research]. Moscow, Nauka Publ., 1981, no. 34. pp. 6-33. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B13">
    <label>13.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Danilov A.D., Vlasov M.N. Fotokhimiya ionizirovannykh i vozbuzhdennykh chastits v nizhnei ionosphere [Photochemistry of Ionized and Excited Particles in the Lower Ionosphere]. Leningrad, Gidrometeoizdat Publ., 1973, 190 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Danilov A.D., Vlasov M.N. Fotokhimiya ionizirovannykh i vozbuzhdennykh chastits v nizhnei ionosphere [Photochemistry of Ionized and Excited Particles in the Lower Ionosphere]. Leningrad, Gidrometeoizdat Publ., 1973, 190 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B14">
    <label>14.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Dashkevich Zh.V., Ivanov V.E., Sergienko T.I., Koze-lov B.V. Physical-chemical model of the auroral ionosphere. Cosmic Res. 2017, vol. 55, no. 2, pp. 88-100. DOI: 10.1134/ S0010952517020022.</mixed-citation>
     <mixed-citation xml:lang="en">Dashkevich Zh.V., Ivanov V.E., Sergienko T.I., Koze-lov B.V. Physical-chemical model of the auroral ionosphere. Cosmic Res. 2017, vol. 55, no. 2, pp. 88-100. DOI: 10.1134/ S0010952517020022.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B15">
    <label>15.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Deminov M.G., Shubin V.N. Empirical model of the location of the main ionospheric trough. Geomagnetism and Aeronomy. 2018, vol. 58, no. 3, pp. 348-355. DOI: 10.1134/ S0016793218030064.</mixed-citation>
     <mixed-citation xml:lang="en">Deminov M.G., Shubin V.N. Empirical model of the location of the main ionospheric trough. Geomagnetism and Aeronomy. 2018, vol. 58, no. 3, pp. 348-355. DOI: 10.1134/ S0016793218030064.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B16">
    <label>16.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Fatkullin M.N. Ionospheric disturbances. Itogi nauki i tekhniki. Geomagnetizm i vysokie sloi atmosfery [Results in Science and Technology. Geomagnetism and High Atmospheric Layers]. Moscow, VINITI Publ., 1978, vol. 4, pp. 6-107. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Fatkullin M.N. Ionospheric disturbances. Itogi nauki i tekhniki. Geomagnetizm i vysokie sloi atmosfery [Results in Science and Technology. Geomagnetism and High Atmospheric Layers]. Moscow, VINITI Publ., 1978, vol. 4, pp. 6-107. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B17">
    <label>17.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Fatkullin M.N. Physics of the ionosphere. Itogi nauki i tekhniki. Geomagnetizm i vysokie sloi atmosfery [Results in Science and Technology. Geomagnetism and High Atmospheric Layers]. Moscow, VINITI Publ., 1982, vol. 6, 224 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Fatkullin M.N. Physics of the ionosphere. Itogi nauki i tekhniki. Geomagnetizm i vysokie sloi atmosfery [Results in Science and Technology. Geomagnetism and High Atmospheric Layers]. Moscow, VINITI Publ., 1982, vol. 6, 224 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B18">
    <label>18.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Fatkullin M.N., Zelenova T.I., Kozlov V.K., Legen’ka A.D., Soboleva T.N. Empiricheskie modeli sredneshirotnoi ionosfery [Empirical Models of the Mid-latitude Ionosphere]. Moscow, Nauka Publ., 1981, 256 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Fatkullin M.N., Zelenova T.I., Kozlov V.K., Legen’ka A.D., Soboleva T.N. Empiricheskie modeli sredneshirotnoi ionosfery [Empirical Models of the Mid-latitude Ionosphere]. Moscow, Nauka Publ., 1981, 256 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B19">
    <label>19.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Gershman B.N. Dinamika ionosfernoi plazmy [Ionospheric Plasma Dynamics]. Moscow, Nauka Publ., 1974, 256 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Gershman B.N. Dinamika ionosfernoi plazmy [Ionospheric Plasma Dynamics]. Moscow, Nauka Publ., 1974, 256 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B20">
    <label>20.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Gershman B.N., Ignatiev Yu.A., Kamenetskaya G.Kh. Mekhanizmy obrazovaniya ionosfernogo sporadicheskogo sloya Es na razlichnykh shirotakh [Mechanisms of Ionospheric Sporadic Es Layer Formation at Different Latitudes]. Moscow, Nauka Publ., 1976, 108 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Gershman B.N., Ignatiev Yu.A., Kamenetskaya G.Kh. Mekhanizmy obrazovaniya ionosfernogo sporadicheskogo sloya Es na razlichnykh shirotakh [Mechanisms of Ionospheric Sporadic Es Layer Formation at Different Latitudes]. Moscow, Nauka Publ., 1976, 108 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B21">
    <label>21.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ionosfernye modeli [Ionospheric Models]. Moscow, Nauka Publ., 1975, 180 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Ionosfernye modeli [Ionospheric Models]. Moscow, Nauka Publ., 1975, 180 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B22">
    <label>22.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ivanov-Kholodnyi G.S., Mikhailov A.V. Prognozirovanie sostoyaniya ionosfery (determinirovannyi podkhod) [Prediction of Ionospheric Conditions (Deterministic Approach)]. Leningrad, Gidrometeoizdat Publ., 1980, 190 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Ivanov-Kholodnyi G.S., Mikhailov A.V. Prognozirovanie sostoyaniya ionosfery (determinirovannyi podkhod) [Prediction of Ionospheric Conditions (Deterministic Approach)]. Leningrad, Gidrometeoizdat Publ., 1980, 190 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B23">
    <label>23.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ivanov-Kholodnyi G.S., Nikolsky G.M. Solntse i iono-sfera [The Sun and the Ionosphere]. Moscow, Nauka Publ., 1969, 455 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Ivanov-Kholodnyi G.S., Nikolsky G.M. Solntse i iono-sfera [The Sun and the Ionosphere]. Moscow, Nauka Publ., 1969, 455 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B24">
    <label>24.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ivanov-Kholodnyi G.S., Nusinov A.A. Obrazovanie i dinamika dnevnogo i sredneshirotnogo sloya E ionosfery [Formation and Dynamics of Daytime Mid-latitude Ionospheric E Layer]. Trudy IPG. 1979, no. 37, 129 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Ivanov-Kholodnyi G.S., Nusinov A.A. Obrazovanie i dinamika dnevnogo i sredneshirotnogo sloya E ionosfery [Formation and Dynamics of Daytime Mid-latitude Ionospheric E Layer]. Trudy IPG. 1979, no. 37, 129 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B25">
    <label>25.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Korsunskaya Yu.A. Effect of hard X-ray and gamma radiations on Earth’s ionosphere and other processes in geospheres. Dinamicheskie protsessy v geosferakh [Dynamic Processes in Geospheres]. 2015, no. 7, pp. 122-132. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Korsunskaya Yu.A. Effect of hard X-ray and gamma radiations on Earth’s ionosphere and other processes in geospheres. Dinamicheskie protsessy v geosferakh [Dynamic Processes in Geospheres]. 2015, no. 7, pp. 122-132. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B26">
    <label>26.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Korsunskaya Yu.A., Strelkov A.S. Photodissociation characteristics of reactions in E and D regions of Earth’s ionosphere. Dinamicheskie protsessy v geosferakh [Dynamic Processes in Geospheres]. 2013, no. 4, pp. 234-244. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Korsunskaya Yu.A., Strelkov A.S. Photodissociation characteristics of reactions in E and D regions of Earth’s ionosphere. Dinamicheskie protsessy v geosferakh [Dynamic Processes in Geospheres]. 2013, no. 4, pp. 234-244. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B27">
    <label>27.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Koshelev V.V., Klimov N.N., Sutyrin N.A. Aeronomiya mezosfery i nizhnei termosfery [Aeronomy of the Mesosphere and Lower Thermosphere]. Moscow, Nauka Publ., 1983, 183 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Koshelev V.V., Klimov N.N., Sutyrin N.A. Aeronomiya mezosfery i nizhnei termosfery [Aeronomy of the Mesosphere and Lower Thermosphere]. Moscow, Nauka Publ., 1983, 183 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B28">
    <label>28.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Kozlov S.I., Bikineev B.F., Novikovich V.M. Statistical model of main parameters of the undisturbed ionosphere for calculation of HF propagation at long paths. IV Mezhvedomstvennyi seminar po modelirovaniyu ionosfery: Tez. dokladov. [The 4th Interdepartmental Workshop on Ionospheric Modeling]. Tomsk, 1978, pp. 38-40. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Kozlov S.I., Bikineev B.F., Novikovich V.M. Statistical model of main parameters of the undisturbed ionosphere for calculation of HF propagation at long paths. IV Mezhvedomstvennyi seminar po modelirovaniyu ionosfery: Tez. dokladov. [The 4th Interdepartmental Workshop on Ionospheric Modeling]. Tomsk, 1978, pp. 38-40. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B29">
    <label>29.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Kozlov S.I., Lyakhov A.N., Bekker S.Z. Key principles of constructing probabilistic statistical ionosphere models for the radio wave propagation problems. Geomagnetism and Aeronomy. 2014, vol. 54, no. 6, pp. 750-762. DOI: 10.1134/ S0016793214060127.</mixed-citation>
     <mixed-citation xml:lang="en">Kozlov S.I., Lyakhov A.N., Bekker S.Z. Key principles of constructing probabilistic statistical ionosphere models for the radio wave propagation problems. Geomagnetism and Aeronomy. 2014, vol. 54, no. 6, pp. 750-762. DOI: 10.1134/ S0016793214060127.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B30">
    <label>30.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Kozlov S.I., Aksenov O.Yu., Bekker S.Z., Lyakhov A.N., Yakim V.V., Yakubovsky S.V. What models should be worked out for radio location systems of centimeter, decimeter and meter wavelength ranges? XIV Ezhegodnaya konferentsiya «Fizika plazmy v Solnechnoi sisteme»: Tez. dokladov [The XIV Annual Conference “Plasma Physics in the Solar System”: Abstracts]. IKI RAS, 11-15 February 2019, p. 127. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Kozlov S.I., Aksenov O.Yu., Bekker S.Z., Lyakhov A.N., Yakim V.V., Yakubovsky S.V. What models should be worked out for radio location systems of centimeter, decimeter and meter wavelength ranges? XIV Ezhegodnaya konferentsiya «Fizika plazmy v Solnechnoi sisteme»: Tez. dokladov [The XIV Annual Conference “Plasma Physics in the Solar System”: Abstracts]. IKI RAS, 11-15 February 2019, p. 127. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B31">
    <label>31.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Krinberg I.A. Kinetika elektronov v ionosfere i plazmosfere Zemli [Electron Kinetics in Earth’s Ionosphere and Plasmasphere]. Moscow, Nauka Publ., 1978, 215 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Krinberg I.A. Kinetika elektronov v ionosfere i plazmosfere Zemli [Electron Kinetics in Earth’s Ionosphere and Plasmasphere]. Moscow, Nauka Publ., 1978, 215 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B32">
    <label>32.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Krinberg I.A., Tashchilin A.V. Ionosfera i plazmosfera [Ionosphere and Plasmasphere]. Moscow, Nauka Publ., 1984, 177 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Krinberg I.A., Tashchilin A.V. Ionosfera i plazmosfera [Ionosphere and Plasmasphere]. Moscow, Nauka Publ., 1984, 177 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B33">
    <label>33.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Krivolutsky A.A., V’yushkova T.Y., Mironova I.A. Changes in the chemical composition in Earth’s polar regions after solar proton flares (3D modeling). Geomagnetism and Aeronomy. 2017, vol. 57, no. 2, pp. 156-176. DOI: 10.1134/S0016793217020074.</mixed-citation>
     <mixed-citation xml:lang="en">Krivolutsky A.A., V’yushkova T.Y., Mironova I.A. Changes in the chemical composition in Earth’s polar regions after solar proton flares (3D modeling). Geomagnetism and Aeronomy. 2017, vol. 57, no. 2, pp. 156-176. DOI: 10.1134/S0016793217020074.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B34">
    <label>34.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Lapshin V.B., Mikhailov A.V., Danilov A.D., Deminov M.G., Karpachev A.T., Shubin V.N., et al. The SIMP model as a new state standard for the ionospheric electron density distribution (State Standard 25645.146). XXV Vserossiiskaya otkrytaya nauchnaya konferentsiya “Rasprostranenie radiovoln”: Trudy. [Proc. the XXV Russian National Open Scientific Conference “Radio Wave Ppropagation”]. Tomsk, July 4-9, 2016. Tomsk, 2016a, vol. 1, pp. 51-57. (In Russian). URL: https://symp.iao.ru/files/symp/rwp/25/Tom1/051-057.pdf (accessed November 30, 2019).</mixed-citation>
     <mixed-citation xml:lang="en">Lapshin V.B., Mikhailov A.V., Danilov A.D., Deminov M.G., Karpachev A.T., Shubin V.N., et al. The SIMP model as a new state standard for the ionospheric electron density distribution (State Standard 25645.146). XXV Vserossiiskaya otkrytaya nauchnaya konferentsiya “Rasprostranenie radiovoln”: Trudy. [Proc. the XXV Russian National Open Scientific Conference “Radio Wave Ppropagation”]. Tomsk, July 4-9, 2016. Tomsk, 2016a, vol. 1, pp. 51-57. (In Russian). URL: https://symp.iao.ru/files/symp/rwp/25/Tom1/051-057.pdf (accessed November 30, 2019).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B35">
    <label>35.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Lapshin V.B., Kalinin Yu.K., Alpatov V.V., Repin A.Yu., Shchelkalin A.V. Voprosy statistiki v prikladnoi geofizike [Statistical Matters in Applied Geophysics]. Obninsk, FGBU “VNIIGMI-MCD” Publ., 2016b, 160 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Lapshin V.B., Kalinin Yu.K., Alpatov V.V., Repin A.Yu., Shchelkalin A.V. Voprosy statistiki v prikladnoi geofizike [Statistical Matters in Applied Geophysics]. Obninsk, FGBU “VNIIGMI-MCD” Publ., 2016b, 160 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B36">
    <label>36.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Mizun Yu.G. Polyarnaya ionosfera [The Auroral Ionosphere]. Leningrad, Nauka Publ., 1980, 202 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Mizun Yu.G. Polyarnaya ionosfera [The Auroral Ionosphere]. Leningrad, Nauka Publ., 1980, 202 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B37">
    <label>37.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Mizun Yu.G. Nizhnyaya ionosfera polyarnykh shirot [The Lower Ionosphere of Polar Latitudes]. Leningrad, Nauka Publ., 1983, 247 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Mizun Yu.G. Nizhnyaya ionosfera polyarnykh shirot [The Lower Ionosphere of Polar Latitudes]. Leningrad, Nauka Publ., 1983, 247 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B38">
    <label>38.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Namgaladze A.A. Problems in modeling of ionospheric disturbances. Ionosfernye issledovaniya [Ionospheric Research]. Moscow, Nauka Publ., 1979, no. 28, pp. 33-36. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Namgaladze A.A. Problems in modeling of ionospheric disturbances. Ionosfernye issledovaniya [Ionospheric Research]. Moscow, Nauka Publ., 1979, no. 28, pp. 33-36. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B39">
    <label>39.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Pavlov A.V., Pavlova N.M. Dependences of NmE statistical characteristics on the month in a year at middle and low latitudes under daytime geomagnetic conditions at low solar activity. Geomagnetism and Aeronomy. 2016, vol. 56, no. 4, pp. 401-406. DOI: 10.1134/S0016793216040162.</mixed-citation>
     <mixed-citation xml:lang="en">Pavlov A.V., Pavlova N.M. Dependences of NmE statistical characteristics on the month in a year at middle and low latitudes under daytime geomagnetic conditions at low solar activity. Geomagnetism and Aeronomy. 2016, vol. 56, no. 4, pp. 401-406. DOI: 10.1134/S0016793216040162.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B40">
    <label>40.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Polyakov V.M., Shchepkin L.A., Kazimirovsky E.S., Kokourov V.D. Ionosfernye protsessy [Ionospheric Processes]. Novosibirsk, Nauka Publ., 1968, 535 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Polyakov V.M., Shchepkin L.A., Kazimirovsky E.S., Kokourov V.D. Ionosfernye protsessy [Ionospheric Processes]. Novosibirsk, Nauka Publ., 1968, 535 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B41">
    <label>41.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ponomarchuk S.N., Kotovich G.V., Romanova E.B., Tashchilin A.V. The forecast of characteristics of decameter radio wave propagation on the base of the Global Ionosphere and Plasmasphere Model. Solnechno-zemnaya fizika [Solar-Terr. Phys.]. 2015, vol. 1, iss. 3, pp. 49-54. (In Russian). DOI: 10.12737/10452.</mixed-citation>
     <mixed-citation xml:lang="en">Ponomarchuk S.N., Kotovich G.V., Romanova E.B., Tashchilin A.V. The forecast of characteristics of decameter radio wave propagation on the base of the Global Ionosphere and Plasmasphere Model. Solnechno-zemnaya fizika [Solar-Terr. Phys.]. 2015, vol. 1, iss. 3, pp. 49-54. (In Russian). DOI: 10.12737/10452.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B42">
    <label>42.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ponomarchuk S.N., Kurkin V.I., Lyakhov A.N., Romanova E.B., Tashchilin A.V. The modeling of HF radio wave propagation characteristics during the periods of solar flares. Proc.  SPIE. 2015, vol. 9680, 96805F. DOI: 10.1117/12.2203591.</mixed-citation>
     <mixed-citation xml:lang="en">Ponomarchuk S.N., Kurkin V.I., Lyakhov A.N., Romanova E.B., Tashchilin A.V. The modeling of HF radio wave propagation characteristics during the periods of solar flares. Proc.  SPIE. 2015, vol. 9680, 96805F. DOI: 10.1117/12.2203591.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B43">
    <label>43.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Ponomarchuk S.N., Ilyin N.V., Lyakhov A.N., Penzin M.S., Romanova E.B., Tashchilin A.V. Complex algorithm for calculation of characteristics of HF radio wave propagation on the basis of the Ionosphere and Plasmasphere Model and method of normal waves. Izvestya vyzov. Fizika [Russian Physics Journal]. Thematic issue. 2016, vol. 59, no. 12/2, pp. 71-74. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Ponomarchuk S.N., Ilyin N.V., Lyakhov A.N., Penzin M.S., Romanova E.B., Tashchilin A.V. Complex algorithm for calculation of characteristics of HF radio wave propagation on the basis of the Ionosphere and Plasmasphere Model and method of normal waves. Izvestya vyzov. Fizika [Russian Physics Journal]. Thematic issue. 2016, vol. 59, no. 12/2, pp. 71-74. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B44">
    <label>44.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Rytov S.M. Vvedenie v statisticheskuyu radiofiziku [Introduction to Statistical Radio Physics]. Moscow, Nauka Publ., 1966, 463 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Rytov S.M. Vvedenie v statisticheskuyu radiofiziku [Introduction to Statistical Radio Physics]. Moscow, Nauka Publ., 1966, 463 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B45">
    <label>45.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Sergeenko N.P. Statistical features of the time series of variations in critical frequencies of the F2 layer. Geomagnetism and Aeronomy. 2019, vol. 59, no. 4, pp. 441-447. DOI: 10.1134/S0016793219040145.</mixed-citation>
     <mixed-citation xml:lang="en">Sergeenko N.P. Statistical features of the time series of variations in critical frequencies of the F2 layer. Geomagnetism and Aeronomy. 2019, vol. 59, no. 4, pp. 441-447. DOI: 10.1134/S0016793219040145.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B46">
    <label>46.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Shefov N.N., Semenov A.I., Khomich V.Yu. Izluchenie verkhnei atmosfery - indikator ee struktury i dinamiki [The Upper Atmosphere Radiation as an Indicator of Its Structure and Dynamics]. Moscow, GEOS Publ., 2006, 741 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Shefov N.N., Semenov A.I., Khomich V.Yu. Izluchenie verkhnei atmosfery - indikator ee struktury i dinamiki [The Upper Atmosphere Radiation as an Indicator of Its Structure and Dynamics]. Moscow, GEOS Publ., 2006, 741 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B47">
    <label>47.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Shubin V.N. Global empirical model of critical frequency of the ionospheric F2-layer for quiet geomagnetic conditions. Geomagnetism and Aeronomy. 2017, vol. 57, no. 4, pp. 414-425. DOI: 10.1134/S0016793217040181.</mixed-citation>
     <mixed-citation xml:lang="en">Shubin V.N. Global empirical model of critical frequency of the ionospheric F2-layer for quiet geomagnetic conditions. Geomagnetism and Aeronomy. 2017, vol. 57, no. 4, pp. 414-425. DOI: 10.1134/S0016793217040181.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B48">
    <label>48.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Shubin V.N., Deminov M.G. Global dynamic model of critical frequency of the ionospheric F2 layer. Geomagnetism and Aeronomy. 2019, vol. 59, no. 4, pp. 429-440. DOI: 10.1134/S0016793219040157.</mixed-citation>
     <mixed-citation xml:lang="en">Shubin V.N., Deminov M.G. Global dynamic model of critical frequency of the ionospheric F2 layer. Geomagnetism and Aeronomy. 2019, vol. 59, no. 4, pp. 429-440. DOI: 10.1134/S0016793219040157.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B49">
    <label>49.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Smirnova N.V., Vlaskov V.A. Atomic oxygen in the disturbed high-latitude D region of the ionosphere. Modelirovanie fizicheskikh processov v polyarnoi ionosphere [Modeling of physical processes in the polar ionosphere]. Apatity, 1979, pp. 82-87. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Smirnova N.V., Vlaskov V.A. Atomic oxygen in the disturbed high-latitude D region of the ionosphere. Modelirovanie fizicheskikh processov v polyarnoi ionosphere [Modeling of physical processes in the polar ionosphere]. Apatity, 1979, pp. 82-87. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B50">
    <label>50.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Strelkov A.S. Secondary electron generation in E and D layers of the ionosphere during ionization by solar hard UV and X-ray radiations. Dinamicheskie protsessy v geosferakh [Dynamic Processes in Geospheres]. 2012, no. 3, pp. 130-140. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Strelkov A.S. Secondary electron generation in E and D layers of the ionosphere during ionization by solar hard UV and X-ray radiations. Dinamicheskie protsessy v geosferakh [Dynamic Processes in Geospheres]. 2012, no. 3, pp. 130-140. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B51">
    <label>51.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Wang Zheng, Shi Jiankui, Wang Guojun, Wang Xiao, Zherebtsov G.A., Romanova E.B., Ratovsky K.G., Polekh N.M. Diurnal, seasonal, annual and semi-annual variation оf ionospheric parameters at different latitudes in Еast Аsian sector during ascending phase of solar activity. Solnechno-zemnaya fizika [Solar-Terr. Phys.]. 2017, vol. 3, no. 2, pp. 45-53. DOI: 10.12737/22594.</mixed-citation>
     <mixed-citation xml:lang="en">Wang Zheng, Shi Jiankui, Wang Guojun, Wang Xiao, Zherebtsov G.A., Romanova E.B., Ratovsky K.G., Polekh N.M. Diurnal, seasonal, annual and semi-annual variation of ionospheric parameters at different latitudes in East Asian sector during ascending phase of solar activity. Solnechno-zemnaya fizika [Solar-Terr. Phys.]. 2017, vol. 3, no. 2, pp. 45-53. DOI: 10.12737/22594.</mixed-citation>
    </citation-alternatives>
   </ref>
   <ref id="B52">
    <label>52.</label>
    <citation-alternatives>
     <mixed-citation xml:lang="ru">Zevakina R.A., Zhulina E.M., Nosova G.N., Sergeenko N.P. Rukovodstvo po kratkosrochnomu prognozirovaniyu ionosfery [The Manual on Short-Term Prediction of the Ionosphere]. Moscow, MGK AN SSSR Publ., 1990, 71 p. (In Russian).</mixed-citation>
     <mixed-citation xml:lang="en">Zevakina R.A., Zhulina E.M., Nosova G.N., Sergeenko N.P. Rukovodstvo po kratkosrochnomu prognozirovaniyu ionosfery [The Manual on Short-Term Prediction of the Ionosphere]. Moscow, MGK AN SSSR Publ., 1990, 71 p. (In Russian).</mixed-citation>
    </citation-alternatives>
   </ref>
  </ref-list>
 </back>
</article>
